CA2095997A1 - Decoloration of polyisocyanates containing isocyanurate and uretdione groups - Google Patents

Decoloration of polyisocyanates containing isocyanurate and uretdione groups

Info

Publication number
CA2095997A1
CA2095997A1 CA2095997A CA2095997A CA2095997A1 CA 2095997 A1 CA2095997 A1 CA 2095997A1 CA 2095997 A CA2095997 A CA 2095997A CA 2095997 A CA2095997 A CA 2095997A CA 2095997 A1 CA2095997 A1 CA 2095997A1
Authority
CA
Canada
Prior art keywords
polyisocyanates containing
uretdione groups
containing isocyanurate
decoloration
isocyanurate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2095997A
Other languages
French (fr)
Other versions
CA2095997C (en
Inventor
Hermann Graf
Ernst Deuker
Stefan Wolff
Ludwig Schuster
Serge Wack
Richard Hardt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2095997A1 publication Critical patent/CA2095997A1/en
Application granted granted Critical
Publication of CA2095997C publication Critical patent/CA2095997C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
    • C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
    • C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
    • C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
    • C07D251/30—Only oxygen atoms
    • C07D251/34—Cyanuric or isocyanuric esters
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D229/00—Heterocyclic compounds containing rings of less than five members having two nitrogen atoms as the only ring hetero atoms
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78—Nitrogen
    • C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
    • C08G18/791—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups
    • C08G18/792—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups formed by oligomerisation of aliphatic and/or cycloaliphatic isocyanates or isothiocyanates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78—Nitrogen
    • C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
    • C08G18/798—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing urethdione groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Detergent Compositions (AREA)

Abstract

The invention relates to a process for brightening polyisocyanates containing isocyanurate and uretdione groups, characterised in that the demonomerised polyisocyanates containing isocyanurate and uretdione groups are treated with oxygen.
CA002095997A 1992-05-13 1993-05-11 Decoloration of polyisocyanates containing isocyanurate and uretdione groups Expired - Fee Related CA2095997C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4215746A DE4215746A1 (en) 1992-05-13 1992-05-13 Process for lightening polyisocyanates containing isocyanurate and uretdione groups
DEP4215746.3 1992-05-13

Publications (2)

Publication Number Publication Date
CA2095997A1 true CA2095997A1 (en) 1993-11-14
CA2095997C CA2095997C (en) 2000-07-11

Family

ID=6458753

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002095997A Expired - Fee Related CA2095997C (en) 1992-05-13 1993-05-11 Decoloration of polyisocyanates containing isocyanurate and uretdione groups

Country Status (7)

Country Link
US (1) US5919887A (en)
EP (1) EP0569804B1 (en)
AT (1) ATE164841T1 (en)
CA (1) CA2095997C (en)
DE (2) DE4215746A1 (en)
ES (1) ES2113970T3 (en)
MX (1) MX9302758A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6043332A (en) * 1997-08-13 2000-03-28 Bayer Aktiengesellschaft Process for the production of light-colored uretdione polyisocyanates

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10035013A1 (en) 2000-07-19 2002-01-31 Bayer Ag Process for the preparation of uretdione polyisocyanates with improved monomer stability
WO2009121881A1 (en) * 2008-04-01 2009-10-08 Basf Se Method for brightening polyisocyanates using ozone-containing gas
JP5650119B2 (en) * 2008-10-22 2015-01-07 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ Method for producing colorless polyisocyanate
DE102009054749A1 (en) * 2009-12-16 2011-06-22 Evonik Degussa GmbH, 45128 Composition of (cyclo) aliphatic diisocyanates and aromatic acid halides
CN111072917B (en) 2020-01-02 2021-06-29 万华化学集团股份有限公司 Polyisocyanate composition with stable storage and preparation method thereof
WO2021165125A1 (en) 2020-02-17 2021-08-26 Covestro Deutschland Ag Polyisocyanate preparations

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US984221A (en) * 1907-05-11 1911-02-14 Charles Hornbostel Production of gases of high oxidizing efficiency.
NL209745A (en) * 1956-02-21
DE3900053A1 (en) * 1989-01-03 1990-07-12 Bayer Ag PROCESS FOR THE PREPARATION OF POLYISOCYANATES USING URETDION AND ISOCYANATE GROUPS, THE POLYISOCYANATES AVAILABLE FOR THIS PROCESS, AND THEIR USE IN TWO-COMPONENT POLYURETHANE VARNISHES
US4935391A (en) * 1989-03-31 1990-06-19 Fmc Corporation Process for preparing a purified mineral coating
DE4029809A1 (en) * 1990-09-20 1992-03-26 Bayer Ag POLYISOCYANATE MIXTURE, A METHOD FOR THE PRODUCTION THEREOF AND ITS USE IN POLYURETHANE PAINTS
DE4033288A1 (en) * 1990-10-19 1992-04-23 Bayer Ag METHOD FOR PRODUCING POLYISOCYANATES HAVING URETDION AND / OR ISOCYANURATE GROUPS, THE POLYISOCYANATES OBTAINED BY THIS METHOD AND THEIR USE IN POLYURETHANIC PAINTS
US5208334A (en) * 1991-07-22 1993-05-04 Miles Inc. Process for the production of polyisocyanates containing allophanate and isocyanurate groups

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6043332A (en) * 1997-08-13 2000-03-28 Bayer Aktiengesellschaft Process for the production of light-colored uretdione polyisocyanates

Also Published As

Publication number Publication date
CA2095997C (en) 2000-07-11
DE4215746A1 (en) 1993-11-18
ATE164841T1 (en) 1998-04-15
ES2113970T3 (en) 1998-05-16
EP0569804A3 (en) 1994-01-26
EP0569804A2 (en) 1993-11-18
US5919887A (en) 1999-07-06
DE59308366D1 (en) 1998-05-14
EP0569804B1 (en) 1998-04-08
MX9302758A (en) 1993-11-01

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed